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A human disease network is a network of human disorders and 
/ref> In a symptom-based disease network, disease are also clustered according to their categories. Moreover, diseases sharing the same symptom are more likely to share the same genes and protein interactions.
* https://www.nytimes.com/2008/05/06/health/research/06dise.html Network theory
disease
A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not immediately due to any external injury. Diseases are often known to be medical conditions that a ...
s with reference to their genetic origins or other features. More specifically, it is the map of human disease associations referring mostly to disease genes. For example, in a human disease network, two diseases are linked if they share at least one associated gene. A typical human disease network usually derives from bipartite networks which consist of both diseases and genes information. Additionally, some human disease networks use other features such as symptoms and proteins to associate diseases.
History
In 2007, Goh et al. constructed a disease-gene bipartite graph using information fromOMIM
Online Mendelian Inheritance in Man (OMIM) is a continuously updated catalog of human genes and genetic disorders and traits, with a particular focus on the gene-phenotype relationship. , approximately 9,000 of the over 25,000 entries in OMIM ...
database and termed human disease network.Goh, Kwang-Il, et al. "The human disease network." Proceedings of the National Academy of Sciences 104.21 (2007): 8685-8690. In 2009, Barrenas et al. derived complex disease-gene network using GWAs (Genome Wide Association studies). In the same year, Hidalgo et al. published a novel way of building human phenotypic disease networks in which diseases were connected according to their calculated distance. In 2011, Cusick et al. summarized studies on genotype-phenotype associations in cellular context.Vidal, Marc, Michael E. Cusick, and Albert-Laszlo Barabasi. "Interactome networks and human disease." Cell 144.6 (2011): 986-998. In 2014, Zhou, et al. built a symptom-based human disease network by mining biomedical literature database.Zhou, XueZhong, et al. "Human symptoms–disease network." Nature Communications 5 (2014).
Properties
A large-scale human disease network shows scale-free property. The degree distribution follows a power law suggesting that only a few diseases connect to a large number of diseases, whereas most diseases have few links to others. Such network also shows a clustering tendency by disease classes.Kannan, Venkateshan et al. "Conditional Disease Development extracted from Longitudinal Health Care Cohort Data using Layered Network Construction". Scientific Reports 6, 26170 (201/ref> In a symptom-based disease network, disease are also clustered according to their categories. Moreover, diseases sharing the same symptom are more likely to share the same genes and protein interactions.
See also
* Bioinformatics *Genome
In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA (or RNA in RNA viruses). The nuclear genome includes protein-coding genes and non-coding g ...
* Network theory
* Network medicine
References
{{reflistExternal links
* https://web.archive.org/web/20080625034729/http://hudine.neu.edu/ * http://www.barabasilab.com/pubs/CCNR-ALB_Publications/200705-14_PNAS-HumanDisease/200705-14_PNAS-HumanDisease-poster.pdf* https://www.nytimes.com/2008/05/06/health/research/06dise.html Network theory